The aim of this study is to investigate the efficacy and safety of two doses (high and low) of empagliflozin as add-on therapy to metformin in patients with type 2 diabetes mellitus (T2DM) and insufficient glycaemic control. Both doses may be given once daily or split to a twice daily dosage. This results in 4 different dosage regimens of empagliflozin (high dose once daily or split vs. low dose once daily or split). This is done to evaluate whether a twice daily dose regimen of empagliflozin results in a loss of efficacy relative to once daily dosing when given on top of metformin background therapy.

A Randomised, Double Blind, Placebo Controlled, Parallel Group Efficacy and Safety Study of Oral Administration of Empagliflozin Twice Daily Versus Once Daily in Two Different Daily Doses Over 16 Weeks as add-on Therapy to a Twice Daily Dosing Regimen of Metformin in Patients With Type 2 Diabetes Mellitus and Insufficient Glycaemic Control

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01649297